package com.servlet.ordinary;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.dao.impl.UserDaoImpl;
import com.po.User;

public class OrdinaryRegisterAjaxServlet extends HttpServlet {

	/**
	 * The doGet method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		  request.setCharacterEncoding("UTF-8"); 
		  response.setCharacterEncoding("UTF-8");
	      response.setContentType("text/html;charset=UTF-8"); 
	      String name = request.getParameter("username"); 
	      PrintWriter out = response.getWriter();
	     // String jsonStr = "{\"valid\":\"false\",\"type\":\"虫子\"}";
	      //String jsonStr = "{\"name\":\"fly\",\"type\":\"虫子\"}";
	        //String jsonFalseString="{\"valid\":false}";
	      String jsonFalseString="{\"valid\":false}";
	      String jsonTrueString="{\"valid\":true}";
	      if(name!=null){
		      try {
		    	  User u = new UserDaoImpl().findByName(name);
					if(u != null){ 
					      out.println(jsonFalseString); 
					      System.out.println(jsonFalseString);
					  }
					else{ 
					      out.println(jsonTrueString); 
					      System.out.println(jsonTrueString);
					}
		      } catch (SQLException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
		  }
	      System.out.println(name);
	      }
	}

	/**
	 * The doPost method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to
	 * post.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

}
